# Copyright 2020 The StackStorm Authors.
# Copyright 2019 Extreme Networks, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import absolute_import
import unittest

from st2client.utils.misc import merge_dicts


class MiscUtilTestCase(unittest.TestCase):
    def test_merge_dicts(self):
        d1 = {"a": 1}
        d2 = {"a": 2}
        expected = {"a": 2}

        result = merge_dicts(d1, d2)
        self.assertEqual(result, expected)

        d1 = {"a": 1}
        d2 = {"b": 1}
        expected = {"a": 1, "b": 1}

        result = merge_dicts(d1, d2)
        self.assertEqual(result, expected)

        d1 = {"a": 1}
        d2 = {"a": 3, "b": 1}
        expected = {"a": 3, "b": 1}

        result = merge_dicts(d1, d2)
        self.assertEqual(result, expected)

        d1 = {"a": 1, "m": None}
        d2 = {"a": None, "b": 1, "c": None}
        expected = {"a": 1, "b": 1, "c": None, "m": None}

        result = merge_dicts(d1, d2)
        self.assertEqual(result, expected)

        d1 = {"a": 1, "b": {"a": 1, "b": 2, "c": 3}}
        d2 = {"b": {"b": 100}}
        expected = {"a": 1, "b": {"a": 1, "b": 100, "c": 3}}

        result = merge_dicts(d1, d2)
        self.assertEqual(result, expected)
